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Montana Field Guide

Montana Field Guides

Rocky Mountain Yellowcress - Rorippa curvipes


Global Rank: G5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

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General Description
Taprooted annual to perennial. Stems prostrate to ascending, 5–20 cm long, branched with racemes terminal and from upper leaf axils. Leaves all cauline, petiolate, oblanceolate, 2–8 cm long, crenate-dentate to pinnately lobed, the terminal lobe largest. Vestiture of simple hairs. Petals yellow, 0.7–2 mm long. Fruit an ovoid silicle, 2–6 mm long, 1.3–2 mm wide, glabrous; style 0.4–1 mm long; pedicels spreading, 2–5 mm long. Montana has varieties curvipes and alpina (S. Watson) Stuckey (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
AB, ND, SD, WI west to the Great Plains and WA, OR, ID, MT, WY, NV, UT, CA, CO, NM, AZ.

Summary of Observations Submitted for Montana
Number of Observations: 1

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Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat

References
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Citation for data on this website:
Rocky Mountain Yellowcress — Rorippa curvipes.  Montana Field Guide.  .  Retrieved on , from